While the size of the hard drive may not be very significant, it’s the physical dimensions that attract attention: Toshiba has announced a 1.8 inch 250GB hard drive that spins at 5400 rpm. Even more interesting is that it features SATA support, offering up to 3Gbps bandwidth for disk intensive applications.

The 8mm thick drive will surely make its way to ultra portable laptops, and will also replace a similar 240GB 1.8 inch hard drive that was announced some time ago, though it was stuck with a slower PATA interface suitable only for portable media players.

The drive hits mass production in November and will be part of the MKxx29GSG series.